9 Jul
2005
9 Jul
'05
12:52 a.m.
On Fri, 8 Jul 2005, Canopus56 wrote:
The dots tell you the brightness in magnitudes of one star - supernova sn2005cs in M51 - seen through a clear eyepiece and through various colored filters. [ lots of other interesting info ]
Many thanks for that detailed explanation. :-) Chris